*{
	margin:0;
	padding: 0;
	-webkit-tap-highlight-color:transparent;
	box-sizing: border-box;
	-webkit-box-sizing:border-box;

}
body{
	font-size: 14px;
	font-family: "黑体";s
	color: #333;
	min-width: 320px;
	max-width: 640px;
	margin: 0 auto;
}
a{
	color: #333;
	text-decoration: none;
}
a:hover{
	text-decoration: none;
}
input{
	border: none;
	outline: none;
	-webkit-appearance:none;
}
ul,ol{
	list-style: none;
}
/*头部*/
.ys_boss{
	width: 100%;
	max-width: 640px;
	min-width: 320px;
	margin: 0 auto;
	background-color: rgb(238,238,238);
margin: 0 auto;
}
.ys_boss>.ys_banner{
	position: fixed;
	top: 0%;
	height: 44px;
	width: 100%;
	z-index: 1000;
	display: flex;
	align-items: center;
	background-color: black;
	box-shadow: 0px 1px 3px ;
	min-width: 320px;
	max-width: 640px;
}
.ys_boss>.ys_banner>a{
	height: 100%;
	width: 45%;
	padding:0px;
	margin:0px;
}
.ys_input1{
	height: 100%;
	width: 100%;
	background-color: rgb(63,68,74);
	color: white;
	font-size: 1.1rem;
}
.ys_input2{
	height: 100%;
	width: 100%;
	font-size: 1.1rem;
	background-color: rgb(255,255,255);
	/*position: absolute;*/
	
}
.ys_input3{
	height: 100%;
	width: 90%;
	display: none;
	background-color: white;
	color:black;
	font-size: 1.1rem;
	padding-left: 9px;
}
.ys_img1{
	
	}
.ys_imgx{
	display: none;
}
/*中部*/
.center{
	width: 100%;
	background-color: white;
	min-width: 320px;
	max-width: 640px;

}
.center>.center_img1{
	width: 100%;
	height: 250px;
}
.center_a{
	display: flex;
	justify-content: center;
	align-items: center;
	align-content:center;
	position: fixed;
	top: 100px;
	/*left: 0;*/
	width: 100%;
	min-width: 320px;
	max-width: 640px;
}
.center>a>.center_input1{
	height: 40px;
	width: 50%;
	background-color: rgba(0,0,0,0.7);
	border-radius: 30px;
	color: white;
	font-size: 1.1rem;
}
.center>.center_div1{
	text-align: center;
	font-size: 1.2rem;
	position: absolute;
	top: 180px;
	margin: 0 auto;
	margin-left: 50px;
}
.center>.center_div2{
	height: 300px;
	width: 450px;
	margin-top: 40px;
	margin: 0 auto;
}
.center>.center_div2>a>img{
	width: 100%;
	height: 100%;
	margin-top: 30px;
}
.center>.center_div3{
	margin-left: 40px;
	font-size: 14px;
	font-weight: bold;
	display: block;
}
.center_a1{
	margin-top: 30px;
}
.center>.center_div4{
	color: rgba(0,0,0,0.7);
	margin-top: 20px;
	margin-left: 40px;
	font-style:italic;

}
.center>.center_div5{
	margin-left: 40px;
	margin-top: 10px;
}
.center>.center_div5>img{
	height: 16px;
	width: 12px;
}
.center>.center_div6{
	display: block;
	height: 300px;
	width: 450px;
	margin-top: 40px;
	margin: 0 auto;
}
.center>.center_div6>img{
	width: 100%;
	height: 100%;
	margin-top: 30px;
}
.center_div7{
	background-color: white;
	margin-top: 3px;
	height: 60px;
	
}
.center_div7>a{
	font-size:1.7rem;
	padding: 20px;
	color: rgb(60,148,139);
}
.center_div8{
	height: 330px;
	width: 100%;
	
	padding-top: 20px;
}
.center_div8>img{
	
	width: 100%;
}
.ys_boss>hr{
	color: rgb(238,238,238);
	background-color:  rgb(238,238,238);
}
.center_div7>img{
	height: 540px;
	width: 100%;
	margin: 0 auto;
}
.center_div9{
	width: 100%;
	height: 80px;
}